@article{184550,
      note = {Distributed to depository libraries in microfiche.},
      author = {Orris, G. J. and Pierce, H. A. and Wells, Tina M.},
      url = {http://library.usi.edu/record/184550},
      title = {Geochemical data from the departments of Choco and  Antioquia, Colombia., Part A,: General discussion  [microform] /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey ;},
      recid = {184550},
      pages = {1 v. (various pagings) ;},
      address = {[Reston, Va.] :},
      year = {1994},
}